This accessible introduction describes the branch of astronomy in which
processes in the universe are investigated with experimental methods
employed in particle-physics experiments. After a historical
introduction the basics of elementary particles, Astroparticle Physics
describes their interactions and the relevant detection techniques. The
emphasis is cosmic rays, while modern aspects of astroparticle physics
also treated in a cosmological content. It provides an orientation in
the field of astroparticle physics that many beginners might seek and
appreciate because the underlying physics fundamentals are presented
with little mathematics, and the results are illustrated by many
diagrams. The reader has a chance to enter this field of astronomy with
a book that closes the gap between expert and popular level.